Description: Papers of Ralph E. Yeatter (1896-1971), wildlife specialist in the Illinois Natural History Survey (1934-1964), including correspondence, manuscripts, publications, research notes and data, maps and diagrams, field work diaries, wildlife conference reports and project reports relating to wildlife in Illinois and the Middle West, game management, wildlife refuges, conservation, forestry, rural land use, ornithology, ringnecked pheasants, prairie chickens, hungarian partridges, prairie crops and vegetation, tularemia and rabbits, ecology, hunting and fishing, wildlife legislation, Illinois game and fish codes, and research methodology. The papers include copies of and research material involving The Hungarian Partridge in the Great Lakes Region (1934), The Prairie Chicken in Illinois (1943), Bird Dogs in Sport and Conservation (1948), and Tularemia, and journals, the Illinois Audubon Newsletter, annual reports on the Prairie Chicken Foundation of Illinois and Reports of the Natural History Survey Section of Wildlife Research. The series includes a research file, arranged alphabetically by subject, of article reprints, pamphlets, leaflets and biographies collected largely from associates of Yeatter in wildlife management.